What is the bassoon's lowest note?

The bassoon's lowest note is indeed B1. This note is produced by the instrument's extended tubing and air column, which allows for a rich and resonant sound at low frequencies. The bassoon is known for its ability to play a wide range, but its fundamental bass register begins at B1. This lower range provides a deep, woody sound that is characteristic of the instrument and is a crucial aspect of its role in both orchestral and chamber music settings.

The other options represent notes that are higher than B1. Eb1, Bb1, and A1 are all above B1, which means they do not accurately reflect the lowest possible pitch that the bassoon can produce. A thorough understanding of the instrument’s capabilities and the range of notes it can effectively play is essential for musicians dealing with bassoon parts in various compositions.